Multi-colored lustrous pearlescent pigments and process for making

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United States of America Patent

PATENT NO 8211224
APP PUB NO 20080110372A1
SERIAL NO

11931473

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Abstract

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A pearlescent pigment comprising a substrate and a first layer, wherein the first layer comprises iron oxide, wherein the iron has from about 1% to about 30% Fe(II) and from about 70% to about 99% Fe(III). A process for making these pearlescent pigment, comprise reducing a metal oxide substrate with a hydrogen source in the presence of a noble metal catalyst in a liquid medium. The pigments may be used in a variety of applications including cosmetics, plastics, automotive, or architectural coatings.

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Patent Owner(s)

Patent OwnerAddress
SUN CHEMICAL CORPORATION35 WATERVIEW BOULEVARD PARSIPPANY NJ 07054

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Antonowicz, Aurelie Gembloux, BE 7 61
Debacker, Marguerite Court Saint Etienne, BE 9 95
Hollman, Aaron M Union, US 10 99
Lin, Hai Hui Mason, US 20 109
Nicolas, Stephane Fleurines, FR 16 96
Schottland, Philippe West Chester, US 94 1166

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